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Record Nr. |
UNINA9910698268703321 |
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Autore |
Young David L |
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Titolo |
Unusual capacitance emission transients in CIGS caused by large defect entropy changes [[electronic resource] /] / D.L. Young, K. Ramanathan, and R.S. Crandall |
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Pubbl/distr/stampa |
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Golden, Colo. : , : National Renewable Energy Laboratory, , [2005] |
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Descrizione fisica |
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4 pages : digital, PDF file |
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Collana |
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Conference paper ; ; NREL/CP-520-37359 |
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Altri autori (Persone) |
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RamanathanKannan |
CrandallRichard S |
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Soggetti |
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Solar cells - Materials - Effect of temperature on |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed on May 9, 2006). |
"February 2005." |
2005-08-21. |
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Sommario/riassunto |
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Capacitance transient data from bias-pulse experiments on CdS/CIGS solar cells show an unusual behavior at high temperatures. Above 350 K, a minority-carrier trap, with a larger activation energy than a majority-carrier trap, emits faster than the lower activation-energy minority trap. A simple enthalpy model for trap emission cannot explain this counterintuitive behavior; but the more complete Gibbs free-energy model that includes entropy can explain it. We show that entropy plays a major role in carrier emission from traps in CIGS. |
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